34 THE AMERICAN BISONS. 
states of preservation, from those that had wholly lost their animal matter to 
those that were fresh and unchanged. In some cases the horny coverings 
still adhered to the horn-cores, and in other cases were found detached but 
still in a good state of preservation. 
3. Valley of the Yukon and us Tributaries. — Mr. W. H. Dall reports (verb. 
com.) the occurrence of the remains of the extinct bison throughout a large 
part of the valley of the Yukon River, Alaska, and along several of its tribu- 
taries. These remains, consisting of horn-cores, crania, lower jaws, and other 
parts, he informs me are found on or near the surface of the ground, with, 
and in the same condition as, the remains of Llephas and an extinct species 
of Equus. The collection of the National Museum at Washington contains. a 
horn-core with part of the frontal bone attached, brought home by Mr. Dall, 
and a metacarpal collected by Mr. Lockhart. A skull of this species, belong- 
ing to the California Academy of Sciences, and kindly loaned me for exam- 
ination, is labelled “St. Michael’s, Alaska,” but may have been brought from 
some point on the Yukon. It thus appears that the remains of the extinct 
bison are found throughout a considerable portion of the Territory of Alaska. 
4. California. —In California the remains of the smaller extinct bison ap- 
pear to be of rather frequent occurrence, having been already found at sev- 
eral different localities, generally associated with the remains of Jfastodon 
Elephas, Tapirus, and Equus. Dr. Leidy has described a skull from Santa 
Clara County ; Professor Whitney mentions the occurrence of its remains in 
Tuolumne County, and Dr. J. G. Cooper has sent a description of a skull 
found by him in Alameda County, where Dr. L. G. Yates has recently dis- 
covered another skull, from which locality I have also seen other fragments. 
25. Oregon. — A phalangeal bone described by Dr. Perkins is said to have 
been found twenty feet below the surface, on the “Wolhammet or Multono- - 
mah River,” a tributary of the Columbia, associated with the remains of 
Elephas. The specimen most likely is referable to the present species. 
From the foregoing it appears that the remains of this species have been 
found rather frequently in California and Alaska, and they probably exist at 
intermediate points. The single specimen from Big-bone Lick, if really 
identical with the western type, as there seems to be good reason for believ- 
ing, extends its range to the valley of the Ohio, and there is hence reason to 
suppose, aside from the occurrence in Georgia of specimens possibly refer- 
able to it, that it may have ranged eastward to the Atlantic coast. Every- 
where its remains occur in association with those of the larger extinct 
